Samuel s



SAMUEL s. BENT, or' New YORK,

N .,Y., SSIGNGR TO IIIM'SELF AND THOMAS BENT, OF SAME PLACE.

"IMPROVEMENT in Fi RE-PLACE H EATERS-.-

- Specification forming part of Letters Patent No. 33,4512, dated October 1, 1861.

a full, clear, and exact description of my said invention, reference being had to theV an- --nexfed drawings, making part of this specification, wherein- Figure l is a plan of my said heater. Fig. 2 is a vertical section,"and Fig. 3 is a front view, the upper parts being in section at the line l 1 ot Fig. 2. l

Similar marks of reference denote the same parts.

Several heaters have heretofore been con- Y structed to occupy the place of anopen grate and serve not only forwarming the room in which' they are located, but also rooms above through the agency of hot-air fines.v In many of these instances the open grate is entirely removed and a stove takes its place, besides which the heater is very seldom adapted to occupy the place of the grate without changing the mantel or, modifying the mode of set- 'ting of the mantel or the parts behind it.

The'nature ofun'y said invention coilsists in heating-pipes applied in a chamber, from which air passes to rooms above, in combina:

-tion with a grate set in such a manner that the same could scarcely be,` distinguished externally from any ordinary grate, and while the heat is notdiminished in the room the otherwise wasteheat acts to warmup another -room or rooms. I am aware that air-spaces ^have been used with an open grate; but by mydevice I amenabled to convey the hot vair from the chamber behind the grate to the 'room or rooms above in a regulated quantity.

In the drawings, a, is a grate of any ordinary construction. cis the fender. b is the frame surrounding the grate. d d is the lining ot' lire-brick or soapstone at the sides of the grate, and e is the lining at the back. f rep'- resents the position of thejmantelface sur- These parts may rounding the' grate-frame.

be of any usual size or shape.

g is the breastwall, formed as a hollow triangular metal box that opens4 at the under 'side and at the ends into the air-chamber formed at the rear of the {ire-place, so that air will circulate in at the bottomrandoutfat cool and impart warmth tothe circulating air. The red arrows represent the air that circulates vin thel chambers, while the black arrows show the direction of the fire-draft.

tothe arch-plate@ above. h h are descending lue pipes uniting at the lower ends with the ascending-flue pipes t' t'. These iiues may proceed separately or--unite at their upper ends in one pipe passing olf to' a suitable chimney,- and n n are doors atV the lower ends vof the iluesh-h and 'z' z for the' purposes of cleaning. y Above the arch-plate p and united therewith are'curved platesV forming a chamber m, the rear side of which chamber cornesI` against the upper `parts of the pipes t' i, and at this point dampers 7c k arev introduced with rods lZ l, by means ot' which'the direction of the draft may be regulated-that is to say, when these dampers 7o lo are 'open the draft from the lire passes up through the chamber nz directly to the` chimney for the purposes of kindliug, and when closed it descends through' the pipes h h, thence by the pipesz't'. It wi be seen that the heat ascending from the tire at all times enters this chamber fm and increases the surface, acting toheat the air in the chamber at the rear of the fireplace. The number of pipes 7L and t' may be varied, and one damper k may be so introduced as to perform all that is required. y

The'ire-brick or soapstone `e`sets against a metal back in which are openings e', (see Figs. 2 and 3,) and hence considerable heat the rear of the fire-place through these bricks or soapstones e.

is formed by the side plates o o, curved top plate o', back plate't, and bottomplate v, and in the top plate oare openings with a regis terslide q and rodr, extending off through `theside of the chimney or otherwise.

the chamber, which may communicate to the room 'in which the grate .is located through an opening or register at the side of the chim' rifey or otherwise. Y

The cold air is admitted into the chamber the ends of. said box to keep it' comparatively To the rear of this box g is a plateconnecting is communicated to the air-in the chamberat The chamber at the back of the fire-placel u is an opening in the side of the casing of l A below.- The cold air passes through the openings in 'the bottom plat-e v and ascendsaniong the pipes h z', passes against the fire-brick or ,soaps'tone e, some circulating through the box g, and rising beneath and around the chamber m Goes oi through the register q.

Having thus described my said invention, what I claim, and desire to secure by Letters Patent, is-

1. The metallic case o, provided with the register' q or openings upon'its upper surface and containing the heating-pipes, as set forth,

when the same is introduced in the chimney l behind and combined with the grate a in they manner and for the purposes specified.y

:2, The openings e' in the metallic back of the grate, protected by and covered with soap stone or tire-brick lining e in contact Withthe fire when the air'to be heat-ed is allowed to circulate in contact with the backl of said1ininge, whereby said lining does not become so excessively hot and the circulating and Warming air is increased in temperature, as set forth. M

In Witness whereof I have hereunto set my signature this 18th day of April, 1861.

' SAMUEL As. BENT;

'itnesseL y LEMUEL W. SERRELL, CHAS. H. SMrrH. 

